TY - JOUR
T1 - Trauma of the ear from infrasound
AU - Lim, David J.
AU - Dunn, Derek E.
AU - Johnson, Daniel L.
AU - Moore, Thomas J.
N1 - Funding Information:
The research reported in this paper was jointly sponsored by the Air Force Aerospace Medical Research Laboratory and the U.S. Environmental Protection Agency. This paper has been identified by the Air Force Aerospace Medical Research Laboratory as AMRL-TR-80-24. The authors wish to thank Ilija Karanfilov, Joan Osborne. Linda Cox, Nancy Sally, Steven Lee McBride. and Katherine Adamson for their invaluable assistance.
Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1982
Y1 - 1982
N2 - Twenty-eight chinchillas received continuous or intermittent infrasound (1, 10. 20 Hz) at 150, 160, or 170 dB SPL; there were 7 controls. Serial sections of the temporal bones were examined using light microscopy. Pathologies noted were tympanic membrane perforation, stapes subluxation, bleeding from the middle ear mucosa and tensor tympani, strial pathology, Reissner's membrane rupture, endolymphatic hydrops, saccular wall rupture, hair cell damage, and blood in the cochlear scalae. Continuous infrasound was more damaging than intermittent. Only continuous infrasound produced saccular pathology and perforations of the tympanic membrane. Of the other pathologies observed, continuous infrasound exposures produced 67% of the hair cell damage, 73% of the bleeding in the cochlear scalae. 83% of the strial pathology, and 78% of the cases of cochlear hydrops. 170-dB infrasound exposures produced the highest percentage of ears with pathologies of the three exposure intensities. As frequency increased the percentage of ears with pathologies decreased.
AB - Twenty-eight chinchillas received continuous or intermittent infrasound (1, 10. 20 Hz) at 150, 160, or 170 dB SPL; there were 7 controls. Serial sections of the temporal bones were examined using light microscopy. Pathologies noted were tympanic membrane perforation, stapes subluxation, bleeding from the middle ear mucosa and tensor tympani, strial pathology, Reissner's membrane rupture, endolymphatic hydrops, saccular wall rupture, hair cell damage, and blood in the cochlear scalae. Continuous infrasound was more damaging than intermittent. Only continuous infrasound produced saccular pathology and perforations of the tympanic membrane. Of the other pathologies observed, continuous infrasound exposures produced 67% of the hair cell damage, 73% of the bleeding in the cochlear scalae. 83% of the strial pathology, and 78% of the cases of cochlear hydrops. 170-dB infrasound exposures produced the highest percentage of ears with pathologies of the three exposure intensities. As frequency increased the percentage of ears with pathologies decreased.
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U2 - 10.3109/00016488209128907
DO - 10.3109/00016488209128907
M3 - Article
C2 - 7148438
AN - SCOPUS:0019980515
SN - 0001-6489
VL - 94
SP - 213
EP - 231
JO - Acta Oto-Laryngologica
JF - Acta Oto-Laryngologica
IS - 1-6
ER -